Houghmagandy

The first part of the word, "hough," is a Scottish term equivalent to ankle, the spot behind the knee or the thigh. The second part could be related to "canty," an Scottish adjective meaning "brisk" or "active." Put them together, and you have "active ankle" or "active legs" - an interesting descriptor of sexual intercourse.

Here is the term in a sentence by Vladimir Nabokov in "Pale Fire." "She would have preferred him to have gone through a bit of wholesome houghmagandy with the wench."